Cambridge ielts 1-15 series reading answers explained

=>ANSWER: NOT GIVEN
20. CHIMPANZEES MAKE PARTICULAR NOISES WHEN THEY ARE 
PLAYING. 
Keywords: chimpanzees, noises, playing 
Paragraph 5 indicates that: “Chimpanzees have a „play-face‟ –
a gaping expression accompanied by a panting „ah,ah” noise. accompanied by: together with. 
=>ANSWER: TRUE
QUESTIONS 21-23: LABEL THE DIAGRAM. CHOOSE NO MORE 
THAN TWO WORDS FROM THE PASSAGE. 
21. RIGHT PREFRONTAL CORTEX LIGHTS UP – AREA OF BRAIN 
LINKED TO …… 
Keywords: right prefrontal cortex, light up 
In paragraph 8, the writer says that “His scans showed that at the beginning of a joke the lis
tener‟s prefrontal cortex lit up, particularly the right prefrontal believed to be critical for problem 
solving” 
+ Light up = lit up (past simple tense) 
=>ANSWER: problem solving
22. ….BECOME ACTIVE TOO 
Keywords: active, too 

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24 
In paragraph 8, the writer says that: “But there was also activity in the temporal lobes at the side of the 
head (consistent with attempts to rouse stored knowledge) and in many other brain areas.” 
+ active = activity 
+ too = also 
=>ANSWER: temporal lobes
23. ORBITAL PREFRONTAL CORTEX IS ACTIVATED – INVOLVED WITH 
… 
Keywords: orbital prefrontal cortex, activated, involved 
Paragraph 8 says that: “Then when the punchline arrived, a new area sprang to life – the orbital 
prefrontal cortex. This patch of brain tucked behind the orbits of the eyes is associated with evaluating 
information” 
+ activated = sprang to life 
+ involved with = associated with 
=>ANSWER: evaluating information
QUESTIONS 24-27: 
Complete each sentence with the correct ending A-G: 
24. ONE OF THE BRAIN‟S MOST DIFFICULT TASKS IS TO….. 
Keywords; brain, most difficult task 
In paragraph 9, the writer states that: “Making a rapid emotional assessment of the events of the 
moment is an extremely demanding job for the brain, animal or human” C. respond instantly to 
whatever is happening = making a rapid emotional assessment of the events of the moment. 
+ difficult task = demanding job 
=>ANSWER: C
25. BECAUSE OF THE LANGUAGE THEY HAVE DEVELOPED, 
HUMANS… 
Keywords: language, developed, humans 
In paragraph 10, the writer states that: “All warm-
blooded animals make constant tiny adjustments in 
arousal in response to external events, but humans, who have developed a much more complic
ated 
internal life as a result of language respond emotionally not only to their surroundings but to
their own thoughts.” A. react to their own thoughts. 
+ react = respond 

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25 
=>ANSWER: A
26. INDIVIDUAL RESPONSES TO HUMOUR…. 
Keywords: individual, responses, humour 
The last sentence of paragraph 10 states that: “Whether a joke gives pleasure or pain depends 
on a 
person‟s outlook”. This means that what a person feels about a joke depends on his personal 
ideas and beliefs, his own views. 
F. relate to a person‟s subjective views 
+ a person‟s subjective views = a person‟s outlook 
=>ANSWER: F
27. PETER DERKS BELIEVES THAT HUMOUR …. 
Keywords: Peter Derks, believes, humour 
The last sentence of paragraph 11 explains that: “If we can figure out how the mind processes 
humour, then we‟ll have a pretty good handle on how it works in general”. Peter Derks believes that if 
we know how the mind/brain processes humour, we can know how the brain works in general. D. may 
provide valuable information about the operation of the brain. 
+ brain = mind